target/linux/s3c24xx/patches/0181-fix-pcf50633-platform-backlight-resume-ramp-setting.patch

   1 From 63d42755b5ac2fca5d31b5a470470ac68a87b8a8 Mon Sep 17 00:00:00 2001
   2 From: Andy Green <andy@openmoko.com>
   3 Date: Fri, 25 Jul 2008 23:06:15 +0100
   4 Subject: [PATCH] fix-pcf50633-platform-backlight-resume-ramp-setting.patch
   5
   6 Signed-off-by: Andy Green <andy@openmoko.com>
   7 ---
   8  arch/arm/mach-s3c2440/mach-gta02.c |    1 +
   9  drivers/i2c/chips/pcf50633.c       |    6 ++++--
  10  include/linux/pcf50633.h           |    1 +
  11  3 files changed, 6 insertions(+), 2 deletions(-)
  12
  13 diff --git a/arch/arm/mach-s3c2440/mach-gta02.c b/arch/arm/mach-s3c2440/mach-gta02.c
  14 index 297b792..309e484 100644
  15 --- a/arch/arm/mach-s3c2440/mach-gta02.c
  16 +++ b/arch/arm/mach-s3c2440/mach-gta02.c
  17 @@ -577,6 +577,7 @@ static struct pcf50633_platform_data gta02_pcf_pdata = {
  18                 },
  19         },
  20         .defer_resume_backlight = 1,
  21 +       .resume_backlight_ramp_speed = 5
  22  };
  23
  24  #if 0 /* currently unused */
  25 diff --git a/drivers/i2c/chips/pcf50633.c b/drivers/i2c/chips/pcf50633.c
  26 index bbc8ae6..6745993 100644
  27 --- a/drivers/i2c/chips/pcf50633.c
  28 +++ b/drivers/i2c/chips/pcf50633.c
  29 @@ -2476,10 +2476,12 @@ void pcf50633_backlight_resume(struct pcf50633_data *pcf)
  30  {
  31         dev_info(&pcf->client.dev, "pcf50633_backlight_resume\n");
  32
  33 -       /* we force the backlight on in fact */
  34 -       reg_write(pcf, PCF50633_REG_LEDDIM, 1);
  35 +       /* platform defines resume ramp speed */
  36 +       reg_write(pcf, PCF50633_REG_LEDDIM,
  37 +                                      pcf->pdata->resume_backlight_ramp_speed);
  38         reg_write(pcf, PCF50633_REG_LEDOUT, pcf->standby_regs.misc[
  39                                    PCF50633_REG_LEDOUT - PCF50633_REG_AUTOOUT]);
  40 +       /* we force the backlight on in fact */
  41         reg_write(pcf, PCF50633_REG_LEDENA, pcf->standby_regs.misc[
  42                                PCF50633_REG_LEDENA - PCF50633_REG_AUTOOUT] | 1);
  43  }
  44 diff --git a/include/linux/pcf50633.h b/include/linux/pcf50633.h
  45 index fa1c7e8..b94b72a 100644
  46 --- a/include/linux/pcf50633.h
  47 +++ b/include/linux/pcf50633.h
  48 @@ -173,6 +173,7 @@ struct pcf50633_platform_data {
  49
  50         /* post-resume backlight bringup */
  51         int defer_resume_backlight;
  52 +       u8 resume_backlight_ramp_speed;
  53  };
  54
  55  #endif /* _PCF50633_H */
  56 --
  57 1.5.6.3
  58